You can use this tool to convert your PowerPoint to DVD:Wondershare PPT2DVD . It can help you retain all features in the original PowerPoint after the conversion, such as animations, transitions, pictures and sounds.
How to Use This PowerPoint to DVD Converter:
Step1: Download it here, and install it on your computer
Step2: Insert a blank DVD to your computer. Open the program, select "Create DVD Files from PowerPoint"
Step3: Import PowerPoint files to it (up to 12 files can be converted at a time)
Step4: Create DVD menus for quick navigation with built-it DVD menu templates if necessary
Step5: Click Start, and your presentation will be burned to DVD automatically
Besides, here is an article introduces5 ways to burn PowerPoint to DVD
Good luck.